About the Authors

Johannes Eckstein

Affiliation Charité—University Medicine Berlin, Institute of Biochemistry, Berlin, Germany

Nikolaus Berndt

Contributed equally to this work with: Nikolaus Berndt, Hermann-Georg Holzhütter

Affiliation Charité—University Medicine Berlin, Institute of Biochemistry, Berlin, Germany

Hermann-Georg Holzhütter

Contributed equally to this work with: Nikolaus Berndt, Hermann-Georg Holzhütter

hergo@charite.de

Affiliation Charité—University Medicine Berlin, Institute of Biochemistry, Berlin, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JE NB HGH. Performed the experiments: JE. Analyzed the data: JE. Contributed reagents/materials/analysis tools: JE. Wrote the paper: JE NB HGH.